Sophia Frank was a daugther of Levie Frank and Mietje Delden. Her father passed away already in 1910.
Sophia married Levie Polak, son of David Polak and Rachel van West, on 12 February 1930 in Amsterdam.
City Archive of Amsterdam, archive card of David Polak, family registration card of Levie Frank and website www.wiewaswie.nl.